Home / 1,868,221.40-2,801,943.30-520,035.80

Finding the Fourth Proportional to 1,868,221.40, 2,801,943.30 and 520,035.80

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Solution

The fourth proportional to 1,868,221.40, 2,801,943.30 and 520,035.80 is: 779,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,221.40 : 2,801,943.30 = 520,035.80 : x
  2. Step 2: Convert to fraction form
    1,868,221.40/2,801,943.30 = 520,035.80/x
  3. Step 3: Cross multiply
    1,868,221.40x = 2,801,943.30 × 520,035.80
  4. Step 4: Simplify right side
    1,868,221.40x = 1,457,110,825,570.14
  5. Step 5: Solve for x
    x = 1,457,110,825,570.14/1,868,221.40
  6. Step 6: Final answer
    x = 779,945.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.